Datasheet Microchip MIC23450-AAAYML-TR — Ficha de datos

MIC23450
3MHz, PWM, 2A Triple Buck Regulator
with HyperLight LoadВ® and Power Good General Description
The MIC23450 is a high-efficiency, 3MHz, triple 2A,
В®
synchronous buck regulator with HyperLight Load mode.
HyperLight Load provides very-high efficiency at light
loads and ultra-fast transient response which is perfectly
suited for supplying processor core voltages. An additional
benefit of this proprietary architecture is very low output
ripple voltage throughout the entire load range with the use
of small output capacitors. The 5mm x 5mm QFN package
saves board space and requires only five external
components for each channel.
The MIC23450 is designed for use with a very small
inductor, down to 0.47ВµH, and an output capacitor as small
as 2.2ВµF that enables a total solution size, less than 1mm
height.
The MIC23450 has a very-low quiescent current of 23ВµA
each channel and achieves as high as 81% efficiency at
1mA. At higher loads, the MIC23450 provides a constant
switching frequency around 3MHz while achieving peak
efficiencies up to 93%. …